Re: xorg and thinkpad x40

On Wednesday 15 March 2006 23:25, Jaime Davila wrote:
Hello all,

Just me, asking a question again, this time being able to offer a
little more information.

Has anyone managed to get ubuntu breezy on an IBM thinkpad x40,
with an i810 chip set, to mirror the laptop's lcd into a CRT?

If yes, could I see the xorg.conf file?

This is critical for me, since I make a lot of presentation off of
my laptop.

To restate the problem I'm seeing:
I can see the output on the lcd, and I can use fn-f7 to send it to
the crt OK. But when I try to mirror the lcd on the crt, both on at
the same time, the crt display flickers, as if there's something
wrong with the refresh rate.

In case it helps, here;s my current xorg.conf, and my xorg.log,
which contains several trials of switching back and forth at the
end.

Thanks for any help,

Jaime

Hi Jaime,

I did a presentation yesterday from one of those, I *think* it was an
x40, but can't be sure as it's not my laptop.

Your xorg.conf looks pretty ordinary and nothing stands out as being
incorrect. You didn't supply the xorg.log - the solution is often to
be found there. If no-one else provides you with a definite solution,
send me those logs with the EDID data for both monitors. Easiest way
is usually to activate the console display on both and start the X
server.

When you say "flicker", is that a visual distortion, or that the
picture gets refreshed low enough for the eye to see the flashing?

A further possibility is that the output electronics of the video card
simply can't drive two sinks - the output can drop below the specs of
the crt. This is not uncommon - a while back when I was doing
projector system installs we'd often have endless problems with this,
but *only* on high-end machines. Cheap garbage always worked just
fine... I eventually put it down to cheap hardware being free and
easy with the vga specs. If your monitor has a function to select a
higher than normal input voltage level, engaging this and seeing what
happens can provide valuable clues.

--
Alan McKinnon
alan at linuxholdings dot co dot za
+27 82, double three seven, one nine three five

--
ubuntu-users mailing list
ubuntu-users@xxxxxxxxxxxxxxxx
https://lists.ubuntu.com/mailman/listinfo/ubuntu-users

Relevant Pages

  • Re: My first HDTV....
    ... real life, ... no doubt...yet the room is magically too small for a crt. ... When the 500 buck price hits, ... though they easily outclass the less expensive LCD panels. ...
    (alt.tv.tech.hdtv)
  • Re: GTA IV graphics optimisation that works
    ... BUT because I use an 19" CRT rather than LCD, ... work on the PC in my opinion, but the perfect resolution for gaming. ... If you have a mid range graphic card there should be no reason your games should run any slower. ...
    (comp.sys.ibm.pc.games.action)
  • Re: LCD vs CRT resolution
    ... Most CRTs are running in the native resolution of the broadcast ... The CRT & LCD I used for the CRT vs LCD investigation that I ... earlier pictures can estimate the spacing then, ...
    (uk.tech.digital-tv)
  • Re: LCD vs CRT
    ... it appears that my 10-year old CRT television has a better ... It all depends on the quality of the signal and the quality of the LCD ... You're comparing HD CRT to HD LCD - so of course standard cable looks ... 19" and one 17" CRT monitors and switched to LCDs for photo editing. ...
    (alt.tv.tech.hdtv)
  • Re: Which TV to go with Humax 9200T?
    ... tube went so I bought an Acoustic Solutions 26" LCD from Argos. ... Have you set the Humax to widescreen? ... If my 25" CRT ... flatscreen to then be able to upscale the now set 800x600 res to hi-def res, ...
    (uk.tech.digital-tv)